395955

Appears in sequences

• Number of (n+2)X(2+2) 0..2 arrays with no increasing sequence of length 3 horizontally or diagonally downwards.at n=0A233612
• T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with no increasing sequence of length 3 horizontally or diagonally downwards.at n=1A233618
• Number of (1+2)X(n+2) 0..2 arrays with no increasing sequence of length 3 horizontally or diagonally downwards.at n=1A233619
• Number of set partitions of [n] into exactly three blocks where sizes of distinct blocks are coprime.at n=12A280881